Hi
Trying to get ideas on setting up a short range (500mm max) beam that if interrupted provides a trigger of sorts.
The range needed is short but accuracy or "width" of beam should be a mm or so at most.
I am hoping to not use a reflector at the "receiving" end of the beam. Is this possible?
IOW, a beam generator that would generate a 1mm round beam for 500mm that if broken by an object will provide a trigger.
Trying to get ideas on setting up a short range (500mm max) beam that if interrupted provides a trigger of sorts.
The range needed is short but accuracy or "width" of beam should be a mm or so at most.
I am hoping to not use a reflector at the "receiving" end of the beam. Is this possible?
IOW, a beam generator that would generate a 1mm round beam for 500mm that if broken by an object will provide a trigger.